Quality Control
Specializing in the production of electrical metering and protection equipment.

Product R&D, Design, and Quality Control

Procurement Material Quality Control

Process Quality Control

Nonconforming Product Quality Control

Product R&D, Design, and Quality Control

The company’s Technology Center has been recognized by the Shandong Provincial Development and Reform Commission as a provincial-level enterprise technology center. It possesses independent design, R&D, and testing capabilities for a full range of oil‑immersed current transformers, capacitive voltage transformers, tank‑type capacitive voltage transformers, SF6 current transformers, GIS‑compatible voltage transformers, surge arresters, and other products rated up to 1000 kV. The center has fully mastered all core technologies related to current transformers and surge arresters spanning the 10 kV to 1000 kV voltage levels. Our company maintains in-depth industry–university–research collaborations with renowned research institutes and universities, including the China Academy of Electrical Sciences, Tsinghua University, Harbin Institute of Technology, and North China Electric Power University, thereby developing a portfolio of cutting-edge, world‑class products.

The Technology Center is fully equipped with state-of-the-art hardware and software, including multiphysics simulation tools such as COMSOL, enabling precise modeling of electric fields, magnetic fields, and temperature distributions in current transformers and surge arresters, while supporting 3D modeling and parametric design. Using EMTP, the center evaluates the transient protection response characteristics of its products, conducts rigorous performance analysis, and proactively prevents quality issues during manufacturing and testing. The company has independently designed and developed a domestically leading series of current transformers and surge arresters ranging from 10 kV to 1000 kV; numerous products have been granted national patents and recognized as National Key New Products and Provincial High-Tech Products.

In terms of design standardization, the company has leveraged 20 years of design experience to develop a series of standardized modules for commonly used, stable, and reliable structural designs, which are then integrated into a comprehensive set of standard product design specifications. During engineering design, parametric adjustments are made based on these specifications, enabling rapid configuration, high design efficiency, and reduced error rates. In the on-site installation phase, standardized structures facilitate installation, commissioning, and ongoing operation and maintenance, thereby effectively shortening the project timeline. Through standardized design, product consistency and reliability have been significantly enhanced.